Self-configuring modular computer system with automatic address initialization
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 1988
Grant Date -
N/A
app pub date -
May 18, 1984
filing date -
May 18, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An initial polling sequence for configuring a modular computer system employing a system bus for interconnecting the CPU and various modules attached to the bus. At the beginning of the polling sequence, a bus base address register in each module is preset to a port 0 address by the CPU. A POLL signal is generated by the CPU and intercepted by the closest module, which responds by placing a module identification character on the data lines of the system bus. The CPU receives the module identification character, stores this character in a table and issues a bus base address for that module. Upon receipt of the bus base address, the module presently active in the polling sequence issues a POLL command to the next module on the system bus. The poll sequence is repeated until all modules have been assigned and have received a bus base address.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully